Home / 171,783.20-237,063.28-128,686.32

Finding the Fourth Proportional to 171,783.20, 237,063.28 and 128,686.32

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Solution

The fourth proportional to 171,783.20, 237,063.28 and 128,686.32 is: 177,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,783.20 : 237,063.28 = 128,686.32 : x
  2. Step 2: Convert to fraction form
    171,783.20/237,063.28 = 128,686.32/x
  3. Step 3: Cross multiply
    171,783.20x = 237,063.28 × 128,686.32
  4. Step 4: Simplify right side
    171,783.20x = 30,506,801,110.33
  5. Step 5: Solve for x
    x = 30,506,801,110.33/171,783.20
  6. Step 6: Final answer
    x = 177,588.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.